Liner for centrifugal liquid-separators.



No. 724,195. I PATENTED MAR. 31,1903.

W. W. MARSH & G. HAGKIEiTl.- LINER FOR GENTRIFUGAL LIQUID SEPARATORS.

APPLICATION FILED 00:1. 19, 1901.

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UNITED STATES "PATENT OFFICE.

WILBUR W. MARSH AND CHARLES H. I-IAOKETT, OF WATERLOO, IOWA, ASSIGNORS TO HAOKETT & DAILEY OREAMERY SUPPLY COMPANY,

OF WATERLOO, IOWA.

LINER FOR 'CENTRIFUGAL LIQUID- -SEPARATORS.

SPECIFICATION forming part or Letters-Patent to. 724,195, dated March 31, 1903. Application filed October 19, 1901. Serial No; 79,213. (No model.)

To all whom it may concern:

Be it known-that we, WILBUR W. MARSH and CHARLES H. HACKETT, citizens of r the United States of America, and residents of Waterloo, Blackhawk county, Iowa, have invented certain new and useful Improvements in Liners for Centrifugal Liquid-Separators, of which the following is a specification.

Our invention relates to improvements in liners for centrifugal liquid-separators; and the object of our improvement is to provide a liner so constructed as tomore effectually separate the lighter from the heavier particles of a liquid by retarding the descent of such particles while under the influence of centrifugal force in the bowl of the separator. This object We have generally efieoted by the means shown, described,. and claimed, as hereinafter set forth.

In the drawings, Figure 1 represents a vertical section of a separator-bowl containing our improved liner. Fig. 2 is a perspective View of three of the liner-pans, showing the manner in which they are supported by the uprights of the core; and Fig. 3 is a plan view of the covering-plate of the liner.

Similar letters refer to similar parts throughout the several views.

or represents a separator-bowl arranged to skim from the top through the cream-exit g, which latter is a tube extending from the interior of said bowl through an opening in the covering-plate is and through the top of the cover f to the exterior of said bowl. The said bowl a is also provided with the usual milkoutlets ll. 1 A circular bottom plate m, made of a sufficient diameter to be easily contained within the interior of the bowl or, has a central hole to allow the shaft of the connectingrod 1) to pass through it. The bottom of the plate m is supported a short distance above the bottom of the separator-bowl by means of radial ridges v 12. An annular slot 8 is recessed within the lower part of the inner periphery of the bowl for the purpose of allow ing the heavier particles of liquid to pass around and under the plate m to the exits ll. Upright rods 0 0 are attached at their lower ends to the outer edge of the plate m for the purpose of supporting the liner-plates and the covering-plate k. A series of corrugated plates are superimposed above each other and supported by the upright rods 0 0 form a core or liner for the separator. Each plate is of annular shape having troughs formed by their respective inclinations toward each other of the concentric plates n, n, 01 and 01 The outer circumferential edge of the plate n closely approaches the inner periphery of the bowl a, while the inner circumferential edge of the platen is'located a sufficient distance from the central axis of the bowl as not to interfere with the formation therein of the vertical column of the lighter constituent of the liquid. Openings u u are provided through the plates, from top to bottom thereof. Studs 10 p are placed on the under surfaces of the plates 72 in order to keep them a short distance apart. Links w to connect the plates together for the purpose of allowing them to be always kept in the same series and to be placed within or withdrawn from the bowl in the same order. The outer edges of the plates n are provided with slots for the reception of the uprights 0 0. The coveringplate It has a central hole 25, which is large enough after the connecting-rod d'has been passed through it to allow the liquid to pass down through it from the upper chamberof the separator. upper ends of the upright rods 0 0 and has a circular opening g for the reception of the cream-tube g. An upper compartment of the separatorvis formed by means of the arched cover f, bearing upon the covering-plate 10-.

Radial partitions h divide this compartment, and an annular rubber t is compressed between the cover f and the plate It to prevent egress of the liquid from between their edges. A cover f also has a cream-tube g passing vertically through it and has a central opening to permit the connecting-rod b to pass vertically through it. The liner-plate kand cover f are firmly fastened in place by means of the connecting -rod 1), which is passed through their respective central openings and the opening in the bottom plate m and screwed into the bottom of the bowl. The upper part of the connecting-rod b has an expansion con- .taining a central chamber 0, having an upper This upper plate It rests upon the milk-inlet c. Openings 6 are placed within the sides of this expansion to permit the egress of milk when under centrifugal pressure. The openings 8 have inclined blades d set within them to assist in spraying the milk into the upper compartment of the separator. The corrugated plates are placed within the upright rods 0, as shown in Fig. 2, superimposed one above another, and the whole liner thus formed introduced within the bowl of the separator. The upper plate is then placed within the bowl supported by the uprights 0. The coverf and connecting-rod b are then placed in position and the whole securely clamped together, leaving the separator in position for operation. The bowl being placed in rapid revolution, milk is introduced into the chamber 0 through the inlet 0 and under centrifugal pressure is sprayed through the openings 6 into the upper compartment of the separator. As the particles of milk forcibly strike the inner periphery of the cover f and the radial partitions it, any solid particles of contaminating matter which may be in the milk are separated therefrom and adhere to the walls of said compartment. The purified milk thence finds egress downward to the interior of-the separator-bowl through the openingt. Thence under the centrifugal pressure imparted to it it tends to be deflected toward the inner periphery of the bowl at right angles to the vertical axis of the bowl. Its horizontal movement outward and its movement vertically downward are obstructed, however, by the inner edges of the corrugated plates, which catch portions of the milk as it moves outward and downward. Those portions of the milk which are caught by the liner-plates are much retarded in their movement outward and downward by means of the peculiar configuration of the trough-like upper surface of the said plates. This retardation of movement is also aided by the openings it it, which permit small portions of the milk to ooze through. The tendency of the lighter constituent of the liquid is to seek the inner axis of the bowl, while that of the heavier particles is to approach the inner periphery of the bowl. A partial separation of these constitutents will ensue under the action of centrifugal force in any ordinary bowl unprovided with a liner; but owing to the swiftdescent of the liquid sufficient opportunity is not allowed for the proper separation of the infinitesimal light particles thereof, and they will escape through the outlets Z Z with the heavier particles. It will readily be seen that the division of the descending current into numerous small portions moving up and down the inclined surfaces of the corrugated plates will, through friction and the slower motion of the particles, more thoroughly separate the lighter from the heavier particles and permit the lighter particles to seek the creamwall at the axis of the bowl Without being swept along to the inner periphery of the bowl by the current of the heavier, particles. The heavier-particles of the liquid after arriving at the bottom of the bowl pass around the bottom plate m through the annular slot .3 and are discharged at the outlets Z l. The lighter particles, having sought the center, are forced upward and pass from the separator-bowl through the cream-outlet g. It will be obvious that the particular method of constructing the corrugated plates as hereinbefore shown results not only in effecting the most complete separation of the liquid, but in thoroughly utilizing the full capacity of the interior of the bowl. The inclined sides of the concentric troughs of the plates occupy the Whole interior space of the bowl and there is no unused space at either the top or the bottom of the liner. The greatest possible amount of eifective work may thus be obtained. The linking together of the plates, as shown, is beneficial in that it permits ready extrication from the bowl, and they are always thereby kept in the same order of arrangement.

This invention is an improvement upon our centrifugal liquid separator patented under No. 677,092 on June 25, 1901.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. A liner for centrifugal liquid-separators, composed of a series of superimposed corrugated annular plates provided with perforations, a bottom plate provided with radial ridges and with upright retaining-rods, as and for the purpose set forth.

2. A liner for centrifugal liquid-separators, composed of a series of superimposed corrugated annular plates provided with perforations, projecting studs on the lower surfaces of said plates, a bottom plate provided with radial ridges and with upright retaining-rods, as and for the purpose set forth.

3. A liner for centrifugal liquid-separators, composed of a series of superimposed corrugated annular plates provided with perforations and with slots on their outer edges, projecting studs on the lower surfaces of said plates, a perforated bottom plate having radial ridges on its under surface and having upright rods attached to its outer edge adapted to fit into the slots on the edges of said annular plates, as and for the purpose set forth.

4. A liner for centrifugal Iiquidseparators, composed of a series of superimposed corrugated annular plates provided with perforations and with slots on their outer edges, projecting studs on the lower surfaces of said plates, links connecting said plates together at their edges, a perforated bottom plate having radial ridges on its under surface and upright retaining-rods attached to its outer edge adapted to fit into the slots on the outer edges of said corrugated plates, as and for the purpose set forth.

5. A liner for centrifugal liquid-separators, composed of a series of superimposed corrugated annular plates provided with perforations and with slots on their outer edges, projecting studs on the lower surfaces of said plates, links connecting said plates together at their edges, a perforated bottom plate having radial ridges on its under surface and upright retainingrods attached to its outer edge adapted to fit into the slots on the outer edges of said corrugated plates, as and for the purpose set forth.

6. The combination of a separator-bowl, having milk-outlets, and having a cover perforated and supplied with a cream-outlet, said cover having radial partitions on its under surface, a perforated top plate, a pack- I ing-ring adapted to be compressed between the edges of said cover and top plate, a connecting-rod containing a chamber having inlets and outlets within its expanded upper portion, with a liner composed of a series of superimposed corrugated annular plates provided with perforations and with slots on their outer edges, studs on the lower surfaces of said plates, links connecting said plates together, a bottom plate having projecting radial ridges on its under surface and upright retaining-rods attached to its outer edge adapted to fit into the slots on the outer edges of said corrugated plates, and a perforated 7 top covering-plate, all substantially as shown and described.

Signed at Waterloo, Iowa, this 16th day of October, 1901.

WILBUR W. MARSH. CHARLES H. HAOKETT.

Witnesses:

Mrs. W. W. MARSH, HAROLD B. PLUMB. 

